Diamond shaped flask



FIG. 1 is a top perspective view of a diamond shaped flask;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a rear elevational view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines in FIG. 4 are included for the purpose of illustrating a portion of the flask that forms no part of the claimed design. 

The ornamental design for a diamond shaped flask, as shown and described. 